Triple extruded frame profiles and method of producing same
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United States of America Patent
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Oct 12, 1999
Issued Date -
N/A
app pub date -
Apr 10, 1998
filing date -
Sep 1, 1993
priority date (Note) -
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Abstract
A method is provided for triple extrusion of a foam material, a coating and one or more flexible flanges attached to the coating or foam material. All three materials are coextruded through a common die and are useful for forming window sashes.
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